Page 1 SUPER INVERTER H9 & H9M Service manual MUCSR-H9; MUCSR-H9M MUSTR-H9 MUCR-H9; MUCR-H9M CL20500 to CL20528 Thank you very much for purchasing our products. CL20474 to CL20477 Please read this manual carefully before installing English and using the unit. www.mundoclima.com...
Page 2 Contents Part 1 General Information ....................1 Part 2 Indoor Units ......................... 5 Part 3 Outdoor Units ......................83 Part 4 Installation ......................... 99 Part 5 Electrical Control System ..................129 ※The specifications, designs, and information in this book are subject to change without notice for product improvement.
Page 3: General Information
General Information Part 1 General Information 1. Model List ..................... 2 2. External Appearance ................3 2.1 Indoor Units ....................... 3 2.2 Outdoor Units ......................3 3. Nomenclature..................4 General Information...
Page 4: Model List
Model List 1. Model List 1.1 Indoor Units Models 30/36 Super Slim Four-way Cassette ● ● ● ● ● ● ● ● ● ● ● Duct Ceiling-floor ● ● ● ● ● ● Compact Four-way Cassette ● 1.2 Outdoor Units Compressor Compressor Universal Outdoor unit Model...
Page 5: External Appearance
External Appearance 2. External Appearance 2.1 Indoor Units Duct Super slim cassette Ceiling-Floor Compact Four-way cassette 2.2 Outdoor Units Single fan outdoor unit Double fan outdoor unit General Information...
Page 6 R: Super DC Inverter X: Multi Split Super DC Inverter - : ON-OFF P: Pared C: Conducto CH: Conducto Alta Capacidad CS: Cassette ST: Suelo Techo CO: Columna CN: Consola PO: Portátil V: Ventana EV: Evaporativo E: Ud. Exterior Multi MUNDOCLIMA General Information...
Page 7 Indoor Units Part 2 Indoor Units MUCSR-H9 (24 to 60) Cassette Type ……………………6 MUCR-H9; MUCR-H9M Duct Type ………………………..…………… ..27 MUSTR-H9 Ceiling & Floor Type ........50 MUCSR-H9; MUCSR-H9M (12 to 18) Cassette Type (Compact) ..... 69 Indoor Units...
Page 8: Table Of Contents
Super Slim Cassette Type MUCSR-H9 (24 to 60) Cassette Type 1. Features ................7 2. Dimensions ..............10 3. Service Space ..............11 4. Wiring Diagrams ............12 5. Air Velocity Distributions (Reference Data) ....18 6. Electric Characteristics ..........21 7.
Page 9: Features
Features 1. Features 1.1 Overview  Compact design, super slim body size, less space requiring in installation  Each louver can be separately controlled, more comfort air blowing is possible. Auto-lifting panel design, more convenient to clean and maintain the filter. (optional) ...
Page 10 Features 1.4 External air duct design  Reserve external air duct, more flexible for the air supply. Built-in draining pump Due to the improvement of structure, more convenient to repair or replace the draining pump.  Draining Pump  Built-in draining pump to make sure condensed water drain out reliably. 1.6 Terminals for alarm lamp and long-distance on-off controller connection are standard ...
Page 11 Features Alarm lamp Long-distance on-off controller 1.7 Twins Combination(24k-30k)  The units can be installed as Twin systems: one outdoor unit can connect with two indoor units. The indoor units can be combined in any of the different available ratings. Indoor Units...
Page 12: Dimensions
Dimensions 2. Dimensions 92 92 Fresh air intake 4-install hanger Body Gas side Liquid side Wiring connection port E-parts box Service hole for Test mouth & Test cover draining pump Drain hole 92 92 92 92 Panel Unit: mm Model(kBtu/h) 24~36 48~60 Indoor Units...
Page 13: Service Space
Service Space 3. Service Space >1000m m >1000mm Chart 3 Indoor Units...
Page 14: Wiring Diagrams
Wiring Diagrams 4. Wiring Diagrams MUCSR-24-H9; MUCSR-30-H9; MUCSR-36-H9; MUCSR-48-H9T; MUCSR-60-H9T KJR-120C / WF-60A1 This symbol indicates the - - - - CODE:16022500000803 TO WIRE the actual element is optional MAGNETIC RING CONTROLLER shape shall prevail Inner Driver FUNCTION OF SWITCH DC Motor SWITCHFOR CCM UNIT ADDRESS (FOR POWER)
Page 15 Wiring Diagrams B For ALARM terminal port CN33 1. Provide the terminal port to connect ALARM, but no voltage of the terminal port , the power from the ALARM system (not from the unit ) 2. Although design voltage can support higher voltage, but we strongly ask you connect the power less than 24V, current less than 0.5A 3.
Page 16 Wiring Diagrams Indoor Units...
Page 17 Wiring Diagrams Micro-Switch Introduce: A. Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode. Range: 24 C, 15 C, 8 C, according to EEROM setting (reserved for special customizing). TEL0+16 Setting fan speed TEL0+14...
Page 18 Wiring Diagrams C.Micro-switch SW3 is for selection of auto-restart function. Range: Active, inactive D. Micro-switch SW5 is for setting the master or slave unit when the unit is in twin connection. Range: Master no slave (Normal 1 drive 1 connection), Master (2 positions without difference), Slave E.Micro-switch SW6 is for selection of temperature compensation in heating mode.
Page 19 Wiring Diagrams G. Dial-switch ENC1: The indoor PCB is universal designed for whole series units from 18K to 55K. This ENC1 setting will tell the main program what size the unit is. NOTE: Usually there is glue on it because the switch position cannot be changed at random unless you want to use this PCB as a spare part to use in another unit.
Page 20: Air Velocity Distributions (Reference Data)
Air Velocity Distributions (Reference Data) Air Velocity Distributions (Reference Data) 24K: Cooling: Heating: Indoor Units...
Page 21 Air Velocity Distributions (Reference Data) 30-36K: Cooling: Heating: Indoor Units...
Page 22 Air Velocity Distributions (Reference Data) 48-60K： Cooling: Heating: Indoor Units...
Page 23: Electric Characteristics
Electric Characteristics Electric Characteristics Power Indoor Unit Supply Model Voltage 220-240V 198V 254V MUCSR-24-H9 220-240V 198V 254V MUCSR-30/36-H9 220-240V 198V 254V MUCSR-48-H9T 220-240V 198V 254V MUCSR-60-H9T Notes: MFA: Max. Fuse Amps. (A) Indoor Units...
Page 24: Sound Levels
Sound Levels Sound Levels 1.4m Microphone Noise level dB(A) Noise Power dB(A) Model MUCSR-24-H9 MUCSR-30/36-H9 MUCSR-48-H9T MUCSR-60-H9T Indoor Units...
Page 25: Accessories
Accessories Accessories Name Shape Quantity Installation Fittings Installation paper board Tubing & Fittings Soundproof / insulation sheath Out-let pipe sheath Out-let pipe clasp Drainpipe Fittings Drain joint Seal ring Remote controller & Its Frame Remote controller & Its Frame(The product you Remote controller holder have might not be provided the following...
Page 26: The Specification Of Power
The Specification of Power 9. The Specification of Power Model(kBtu/h) 30/36 48~60 Phase 1-phase 1-phase 1-phase Frequency 220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz Voltage Indoor Power 3×1.0(3×2.5 3×1.0(3×2.5 3×1.0(3×2.5 with POWER WIRING with with auxiliary electric auxiliary electric auxiliary electric heater) heater) heater)
Page 27: Field Wiring
Field Wiring 10. Field Wiring Models 24 to 36 Indoor Units...
Page 28 Field Wiring Models 48 to 60 Indoor Units...
Page 29 Duct Type MUCR-H9; MUCR-H9M Duct Type 1. Features ................. 28 2. Dimensions ..............31 3. Service Space ..............32 4. Wiring Diagrams ............33 5. Static Pressure ............... 39 6. Electric Characteristics ..........45 7. Sound Levels ..............46 8. Accessories ..............47 9.
Page 30: Features
Features Features 1.1 Higher Static Pressure As a ducted air conditioner with medium static pressure, it has the widest static pressure range.   The maximum static pressure reaches 160 Pa 1.2 Slim Design  The industry Lowest height is designed to be fitted into tight roof spaces. *18K unit - 210mm,24K/36K unit - 249mm，48K unit -300mm Constant air volume control ...
Page 31 Features 1.4 Flexible Air Intake Way (Bottom side or Rear side)  The frame size of air inlet in rear and bottom is the same. It’s very easy to switch to match different application. Air intake from bottom (Optional) Air intake from rear (Standard) 1.5 Communication wire connection ...
Page 32 Features Fresh air intake function (Optional)  Install one duct from the reserved fresh-air intake to outdoor. Continually inhale the fresh air to improve the quality of the indoor air, fulfills air quality more healthy and comfortable.  A ventilation motor (provided by the installer) can be installed inside the fresh air duct to improve the fresh air volume.
Page 33: Dimensions
Dimensions Dimensions Model unit (KBtu/h) inch 27.6 19.9 17.7 21.1 23.6 29.2 14.2 inch 34.65 8.27 26.54 23.62 5.51 27.80 1.97 5.35 30.79 7.48 1.57 36.22 20.00 3.07 5.83 3.46 4.41 1100 1001 1140 inch 43.31 9.80 30.47 27.56 5.51 36.46 1.97 6.89...
Page 34: Service Space
Service Space Service Space Ensure enough space required for installation and maintenance. Indoor Units...
Page 35: Wiring Diagrams
Wiring Diagrams Wiring Diagrams MUCR-12-H9; MUCR-18-H9; MUCR-12-H9M; MUCR-18-H9M 16023000A53875 FAN FOR THE WIRING DIAGRAM FRESH AIR NOTE: Alarm Remote OR ANION (INDOOR UNIT) FAN1 Output Control 1.The parts with dotted line indicates GENERATOR optional features. DC MOTOR CON2 DRIVER MODLE 2.Remove the short connector of J7 DC FAN when you use the "on-off"...
Page 36 Wiring Diagrams 4.1 Some connectors introduce: A. For new fresh motor terminal port (also for Anion generator) CN43: 1. Connect the fan motor to the port, no need care L/N of the motor; 2. The output voltage is the power supply; 3.
Page 37 Wiring Diagrams B For ALARM terminal port CN33 1. Provide the terminal port to connect ALARM, but no voltage of the terminal port, the power from the ALARM system (not from the unit) 2. Although design voltage can support higher voltage, but we strongly ask you connect the power less than 24V, current less than 0.5A.
Page 38 Wiring Diagrams 4.2 Micro-Switch Introduce: A. Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode. Range: 24 C, 15 C, 8 C, according to EEROM setting (reserved for special customizing). For 12K: For 18K: TEL0+23- TE1...
Page 39 Wiring Diagrams C. Micro-switch SW3 is for selection of auto-restart function. Range: Active, inactive D. Micro-switch SW5 is for setting the master or slave unit when the unit is in twin connection. Range: Master no slave (Normal 1 drive 1 connection), Master (2 positions without difference), Slave E.Micro-switch SW6 is for selection of temperature compensation in heating mode.
Page 40 Wiring Diagrams F. Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a central controller. Range: 00-63 G. Dial-switch ENC1: The indoor PCB is universal designed for whole series units from 18K to 60K.
Page 41: Static Pressure
Static Pressure 5. Static Pressure Air flow rate(m3/h ) （ no filter ） 1200 1100 PS ： SP4 M==SP3 H 1000 External Static Pressure （ pa ） External Static Pressure (Pa) Indoor Units...
Page 42 Static Pressure Constant air volume Indoor Units...
Page 43 Static Pressure Air flow rate(m3/h ) （ no filter ） 2400 2200 2000 1800 1600 1400 1200 1000 External Static Pressure （ pa ） 20 25 30 40 50 60 70 80 90 100 110 120 130 140 150 160 1800 1600 1400...
Page 44 Static Pressure 30k/36k Air flow rate(m3/h ) （ no filter ） 3200 3000 2800 2600 2500 2400 2200 2000 1800 1600 1400 1200 1000 External Static Pressure （ pa ） 20 25 30 40 50 60 70 80 90 100 110 120 130 140 150 160 2500 2000 1500...
Page 45 Static Pressure 42k/48k Air flow rate(m3/h ) （ no filter ） 4800 4400 4000 3600 3200 3100 2800 2400 2000 1600 1500 1200 External Static Pressure （ pa ） 20 25 30 40 50 60 70 80 90 100 110 120 130 140 150 160 3500 3000 2500...
Page 46 Static Pressure Air flow rate(m3 /h) (no filter) 4800 4400 4000 3600 3200 2800 2400 2000 1600 1200 External Static Pressure (Pa) 20 25 30 40 50 60 70 80 90 100 110 120 130 140 150 160 3500 3000 2500 2000 1500...
Page 47: Electric Characteristics
Electric Characteristics 6. Electric Characteristics Indoor Unit Power Supply Model Voltage Min. Max. MUCR-12-H9 220-240V 198V 254V MUCR-18-H9 220-240V 198V 254V MUCR-24-H9 220-240V 198V 254V MUCR-30/36-H9 220-240V 198V 254V MUCR-42-H9 220-240V 198V 254V MUCR-48-H9T 220-240V 198V 254V MUCR-60-H9T 220-240V 198V 254V Note: MFA: Max.
Page 48: Sound Levels
Sound Levels Sound Levels Concealed Duct Type Discharge Suction Duct Duct 1.4m Microphone Noise level dB(A) Sound Power Model dB(A) MUCR-12-H9 MUCR-18-H9 41,5 MUCR-24-H9 MUCR-30-H9 MUCR-36-H9 MUCR-42-H9 MUCR-48-H9T MUCR-60-H9T Indoor Units...
Page 49: Accessories
Accessories 8. Accessories Quantity Name Shape Tubing & Fittings Soundproof / insulation sheath Drain joint Drainpipe Fittings (for cooling & heating) Seal ring Magnetic ring EMC & It’s Fitting (twist the electric wires L and N around (for some models) the magnetic ring to five circles) Wired controller Wired controller &...
Page 50: The Specification Of Power
The Specification of Power & Field Wiring The Specification of Power 12~18 Model(kBtu/h) Phase 1-phase 1-phase 1-phase 1-phase Frequency and 220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz 220-240V, 50Hz Voltage POWER 3×2.5(3×4.0 with 3×2.5(3×4.0 with 3×4.0(3×6.0 with POWER WIRING 3×2.5 auxiliary electric auxiliary electric auxiliary electric heater)
Page 51 Field Wiring 1(L) 2(N) S 1(L) 2(N) S Power supply: 1-Phase 208-240V~ 24K : 3-core cable 3x2.5mm ≤ 25K-36K : 3-core cable 3x4.0mm 37K : 3-core cable 3x6.0mm ≥ 24k~60k Indoor Units...
Page 52 Ceiling & Floor Type MUSTR-H9 Ceiling and Floor Type 1. Features ....................51 2. Dimensions ..................52 3. Service Space ..................53 4. Wiring Diagrams ................54 5. Electric Characteristics ..............60 6. Sound Levels ..................60 7. Air Velocity and Temperature Distributions (Reference Data) ..61 8.
Page 53: Features
Features 1. Features 1.1. New design, more modern and elegant appearance. 1.2. Convenient installation --The ceiling type can be easily installed into a corner of the ceiling even if the ceiling is very narrow --It is especially useful when installation of an air conditioner in the center of the ceiling is impossible due to a structure such as one lighting.
Page 54: Dimensions
Dimensions 2. Dimensions Wiring connection port Drain discharge port Fresh air intake Refrigerant pipe hole Hanging arm Capacity (KBtu/h) 18/24 1068 30/36/48/60 1650 1565 Indoor Units...
Page 55: Service Space
Service Space 3. Service Space Indoor Units...
Page 56: Wiring Diagrams
Wiring Diagrams 4. Wiring Diagrams MUSTR-18-H9 MAGNETIC 16022700003080 MAGNETIC RING RING WIRING DIAGRAM (INDOOR UNIT) FAN1 FAN2 FAN FOR THE Note1: FRESH AIR DC FAN DC FAN Alarm Remote OR ANION DC MOTOR This symbol indicates the element Output GENERATOR Control DRIVER MODLE optional,...
Page 57 Wiring Diagrams MUSTR-30-H9; MUSTR-36-H9; MUSTR-48-H9T; MUSTR-60-H9T KJR-120G KJR-120C / WF-60A1 KJR-12B / KJR-29B Indoor Units...
Page 58 Wiring Diagrams 4.1 Some connectors introduce: A For remote control (ON-OFF) terminal port CN23 1. Remove the short connector in CN23 when you use ON-OFF function; 2. When remote switch off (OPEN), the unit would be off; 3. When remote switch on (CLOSE), the unit would be on; 4.
Page 59 Wiring Diagrams 2. Although design voltage can support higher voltage, but we strongly ask you connect the power less than 24V, current less than 0.5A 3. When the unit occurs the problem, the relay would be closed, then ALARM works C.
Page 60 Wiring Diagrams 4.2 Micro-Switch Introduce: A. Micro-switch SW1 is for setting the master or slave unit when the unit is in twin connection. Range: Master no slave (Normal 1 drive 1 connection), Master (2 positions without difference), Slave B. Micro-switch SW2 is for selection of indoor FAN ACTION if room temperature reaches the setpoint and the compressor stops.
Page 61 Wiring Diagrams E.Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to reduce the real temperature difference between ceiling and floor so that the unit could run properly. If the unit is on-floor installed, 0 should be chosen. Range: 0 C, 2 C, 4...
Page 62: Electric Characteristics
Electric Characteristics 5. Electric Characteristics Indoor Units Power Supply Model Voltage Min. Max. MUSTR-18-H9 220-240V 198V 254V MUSTR-24-H9 220-240V 198V 254V MUSTR-30-H9 220-240V 198V 254V MUSTR-36-H9 220-240V 198V 254V 220-240V 198V 254V MUSTR-48-H9T 220-240V 198V 254V MUSTR-60-H9T Note: MFA: Max. Fuse Amps. (A) 6.
Page 63: Air Velocity And Temperature Distributions (Reference Data)
Air Velocity and Temperature Distributions (Reference Data) 7. Air Velocity and Temperature Distributions (Reference Data) Model: 18k, 24k Ceiling installation: Discharge angle 17° Discharge angle 50° Indoor Units...
Page 64 Air Velocity and Temperature Distributions (Reference Data) Floor installation: Discharge angle 17° Discharge angle 50° Indoor Units...
Page 65 Air Velocity and Temperature Distributions (Reference Data) Model: Model: 30k, 36k Ceiling installation: Discharge angle 17° Discharge angle 50° Indoor Units...
Page 66 Air Velocity and Temperature Distributions (Reference Data) Floor installation: Discharge angle 17° Discharge angle 50° Indoor Units...
Page 67 Air Velocity and Temperature Distributions (Reference Data) Model: 48k, 60k Ceiling installation: Discharge angle 17° Discharge angle 50° Indoor Units...
Page 68 Air Velocity and Temperature Distributions (Reference Data) Floor installation: Discharge angle 17° Discharge angle 50° Indoor Units...
Page 69: Accessories
Accessories 8. Accessories Name Shape Quantity 1. Remote controller Remote controller & Its holder(The product you 2. Remote controller holder have might not be provided the following accessories) 3. Mounting screw (ST2.9×10-C-H) 4. Alkaline dry batteries (AM4) 5. Owner's manual Others 6.
Page 70: Field Wiring
Field Wiring 10. Field Wiring 1(L) 2(N) S 1(L) 2(N) S Power supply: 1-Phase 208-240V~ ≤ 24K : 3-core cable 3x2.5mm 25K-36K : 3-core cable 3x4.0mm ≥ 37K : 3-core cable 3x6.0mm 24k~60k Indoor Units...
Page 71 Compact Four-way Cassette Type MUCSR-H9; MUCSR-H9M (12 to 18) Cassette Type (Compact) 1. Features ....................70 2. Dimensions ..................71 3. Service Space ..................72 4. Wiring Diagrams .................. 73 5. Air Velocity and Temperature Distributions (Reference Data) ..79 6.
Page 72: Features
Features 1. Features 1.1 New panel  360°surrounding air outlet design, affords comfortable feeling 1.2 Compact design  The body size is 570×260×570mm, it’s just smaller than the ceiling board, so it’s very easy for installation and will not damage the decoration. The panel size is 647×50×647mm. ...
Page 73: Dimensions
Dimensions 2. Dimensions 12k, 18k Liquid side Gas side Body Drain hole Wiring connection port ( for Service ) E-parts box 150 Distribution duct 4-Screw hole (for install panel) 4-install hanger Drain pipe Fresh air intake Wiring connection port Panel Indoor Units...
Page 74: Service Space
Service Space 3. Service Space Indoor Units...
Page 75: Wiring Diagrams
Wiring Diagrams 4. Wiring Diagrams MUCSR-12-H9; MUCSR-12-H9M KJR-12B / KJR-29B KJR-120C / WF-60A1 MUCSR-18-H9; MUCSR-18-H9M KJR-12B / KJR-29B KJR-120C / WF-60A1 Indoor Units...
Page 76 Wiring Diagrams 4.1 Some connectors introduce: A For remote control (ON-OFF) terminal port CN23 and short connector of JR6 1. Remove the short connector of JR6 when you use ON-OFF function; 2. When remote switch off (OPEN), the unit would be off; 3.
Page 77 Wiring Diagrams C. For new fresh motor terminal port CN8 1. Connect the fan motor to the port, no need care L/N of the motor; 2. The output voltage is the power supply; 3. The fresh motor cannot excess 200W or 1A, follow the smaller one; 4.
Page 78 Wiring Diagrams Micro-Switch Introduce: A. Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode. Range: 24 C, 15 C, 8 C, according to EEROM setting (reserved for special customizing). For 12k: For 18k: TEL0+16...
Page 79 Wiring Diagrams C.Micro-switch SW3 is for selection of auto-restart function. Range: Active, inactive D. Micro-switch SW5 is for setting the master or slave unit when the unit is in twin connection. Range: Master no slave (Normal 1 drive 1 connection), Master (2 positions without difference), Slave E.Micro-switch SW6 is for selection of temperature compensation in heating mode.
Page 80 Wiring Diagrams F.Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a central controller. Range: 00-63 G. Dial-switch ENC1: The indoor PCB is universal designed for whole series units from 18K to 55K. This ENC1 setting will tell the main program what size the unit is. NOTE: Usually there is glue on it because the switch position cannot be changed at random unless you want to use this PCB as a spare part to use in another unit.
Page 81: Air Velocity And Temperature Distributions (Reference Data)
Air Velocity and Temperature Distributions (Reference Data) 5. Air Velocity and Temperature Distribution s (Reference Data) 12K Discharge Angle 30° Cooling airflow velocity distributions Cooling temperature distributions Discharge Angle 30° Cooling airflow velocity distributions Cooling temperature distributions Indoor Units...
Page 82: Electric Characteristics
Electric Characteristics 6. Electric Characteristics Indoor Units Power Supply Model Voltage Min. Max. 220-240V 198V 254V MUCSR-12-H9; MUCSR-12-H9M 220-240V 198V 254V MUCSR-18-H9; MUCSR-18-H9M Note: MFA: Max. Fuse Amps. (A) 7. Sound Levels 1.4m Microphone Noise level dB(A) Model Sound Power dB(A) MUCSR-12-H9;...
Page 83: Accessories
Outdoor Units 8. Accessories Name Shape Quantity Installation Fittings Installation paper board Tubing & Fittings Soundproof / insulation sheath Out-let pipe sheath Out-let pipe clasp Drainpipe Fittings Drain joint Seal ring Remote controller & Its Frame Remote controller & Its Frame(The product you Remote controller holder have might not be...
Page 84: Field Wiring
Outdoor Units 10. Field Wiring 1(L) 2(N) S 1(L) 2(N) S Power supply: 1-Phase 208-240V~ 24K : 3-core cable 3x2.5mm ≤ 25K-36K : 3-core cable 3x4.0mm 37K : 3-core cable 3x6.0mm ≥ Outdoor Units...
Page 85: Outdoor Units
Outdoor Units Part 3 Outdoor Units 1. Dimensions ..............84 2. Service Space ..............86 3. Wiring Diagrams ............87 4. Piping Diagrams ............. 95 5. Electric Characteristics ..........96 6. Operation Limits ............97 7. Sound Levels ..............98 Outdoor Units...
Page 86: Dimensions
Dimensions 1. Dimensions Unit：mm Model 12/18 30/36/42 1030 Outdoor Units...
Page 87 Dimensions Unit：mm Model 48/60 1333 1045 Outdoor Units...
Page 88: Service Space
Service Space 2. Service Space (Wall or obstacle) More than 30cm Air inlet More than 60cm More than 30cm Maintain channel Air inlet More than 60cm Air outlet More than 200cm Outdoor Units...
Page 89: Wiring Diagrams
Wiring Diagrams 3. Wiring Diagrams UE - MUCR-12-H9 / MUCSR-12-H9 Outdoor Units...
Page 90 Wiring Diagrams UE - MUCR-18-H9 / MUCSR-18-H9 / MUSTR-18-H9 Outdoor Units...
Page 91 Wiring Diagrams UE - MUCR-24-H9 / MUCSR-24-H9 / MUSTR-24-H9 Outdoor Units...
Page 92 Wiring Diagrams UE - MUCR-30-H9 / MUCSR-30-H9 / MUSTR-30-H9 Outdoor Units...
Page 93 Wiring Diagrams UE - MUCR-36-H9 / MUCSR-36-H9 / MUSTR-36-H9 Outdoor Units...
Page 94 Wiring Diagrams UE 36k (3Ph) Outdoor Units...
Page 95 Wiring Diagrams UE - MUCR-42-H9 Outdoor Units...
Page 96 Wiring Diagrams UE - MUCR-48-H9T / MUCSR-48-H9T / MUSTR-48-H9T, UE - MUCR-60-H9T / MUCSR-60-H9T / MUSTR-60-H9T WIRING DIAGRAM (OUTDOOR UNIT) BLUE WHITE/BLACK NOTE:FOUR-WAY VALVE IS USED IN THE 4-WAY1 COOLING & HEATING UNIT ONLY BLACK WHITE/BLACK BLUE BLUE WHITE/BLACK BLACK CN30 BLACK WHITE...
Page 97: Piping Diagrams
Piping Diagrams 4. Piping Diagrams Models 12 to 30 INDOOR OUTDOOR Electronic CAPILIARY TUBE expansion valve LIQUID SIDE 2-WAY VALVE T3 Condenser temp. sensor HEAT EXCHANGE (EVAPORATOR) HEAT T4 Ambient T1 Room temp. T2 Evaporator EXCHANGE temp. sensor sensor temp. sensor (CONDENSER) middle T2B Evaporator...
Page 98: Electric Characteristics
Electric Characteristics 5. Electric Characteristics Power Supply Outdoor Unit Model Voltage Min. Max. UE - MUCR-12-H9 / 220-240V 198V 254V MUCSR-12-H8 UE - MUCR-18-H9 / MUCSR-18-H9 / 220-240V 198V 254V MUSTR-18-H9 UE - MUCR-24-H9 / MUCSR-24-H9 / 220-240V 198V 254V MUSTR-24-H9 UE - MUCR-30-H9 / MUCSR-30-H9 /...
Page 99: Operation Limits
Operation Limits 6. Operation Limits Temperature Cooling operation Heating operation Drying operation Mode Room temperature 17℃～32℃ 0℃～30℃ 17℃～32℃ Outdoor temperature 0℃～50℃ -15℃～24℃ -15℃～50℃ CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally.
Page 100: Sound Levels
Sound Levels 7. Sound Levels Outdoor Unit Microphone 1.0m Note: H= 0.5 × height of outdoor unit Model Noise Power dB(A) Noise level dB(A) 55.5 UE - MUCR-12-H9 / MUCSR-12-H9 UE - MUCR-18-H9 / MUCSR-18-H9 / MUSTR-18-H9 UE - MUCR-24-H9 / MUCSR-24-H9 / MUSTR-24-H9 UE - MUCR-30-H9 / MUCSR-30-H9 / MUSTR-30-H9 UE - MUCR-36-H9 / MUCSR-36-H9 / MUSTR-36-H9 UE - MUCR-42-H9...
Page 101: Installation
Installation Part 4 Installation 1. Installation Procedure ..........100 2. Location selection ............101 3. Indoor unit installation ..........102 4. Outdoor unit installation (Side Discharge Unit) ..115 5. Refrigerant pipe installation ........116 6. Drainage pipe installation ..........120 7.
Page 102: Installation Procedure
Installation Procedure 1. Installation Procedure Indoor unit installation Outdoor unit installation location selection location selection Indoor unit installation Outdoor unit installation Refrigerant pipe Refrigerant pipe installation and insulation installation and insulation Drainage pipe installation Drainage pipe installation and insulation and insulation Vacuum drying and leakage checking Additional refrigerant charge Insulation the joint part of refrigerant pipe...
Page 103: Location Selection
Location selection 2. Location selection 2.1 Indoor unit location selection  The place shall easily support the indoor unit’s weight.  The place can ensure the indoor unit installation and inspection.  The place can ensure the indoor unit horizontally installed. ...
Page 104: Indoor Unit Installation
Indoor unit installation 3. Indoor unit installation 3.1 Super slim cassette indoor unit installation 3.1.1 Service space for indoor unit Model(kBtu/h) >275 24~36 >317 48/60 3.1.2 Bolt pitch 3.1.3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling.
Page 105 Indoor unit installation 3.1.4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it. Adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the body. Use a leveling instrument to make sure the levelness of the main body is within ±1°.
Page 106 Indoor unit installation Remove the 4 corner covers. Hang the panel to the hooks on the mainbody. If the panel is with auto-lift grille, please watch the ropes lifing the grille, DO NOT make the ropes enwinded or blocked. Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water.
Page 107 Indoor unit installation Hang the air-in grill to the panel, then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively. Install the 4 corner covers back. Note: The panel shall be installed after the wiring connected. Installation...
Page 108 Indoor unit installation 3.2 Ceiling & floor indoor unit installation 3.2.1 Service space for indoor unit 3.2.2 Bolt pitch ① Ceiling installation Capacity (KBtu/h) 18/24 30~60 1565 ② Wall-mounted installation 3.2.3 Install the pendant bolt ① Ceiling installation Select the position of installation hooks according to the hook holes positions showed in upper picture. Installation...
Page 109 Indoor unit installation Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings). ② Wall-mounted installation Install the tapping screws onto the wall.(Refer to picture below) 3.2.4 Install the main body ①...
Page 110 Indoor unit installation Put the side panels and grilles back. ② Wall-mounted installation Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit. (The bottom of body can touch with floor or suspended, but the body must install vertically.) Installation...
Page 111 Indoor unit installation 3.3 A6 duct indoor unit installation 3.3.1 Service space for indoor unit 3.3.2 Bolt pitch Size of outline dimension mounted lug Capacity(KBtu) 1140 30~36 1400 42~60 1240 3.3.3 Hang indoor unit 1. Please refer to the upper data to locate the four positioning screw bolt hole on the ceiling. Be sure to mark the areas where ceiling hook holes will be drilled.
Page 112 Indoor unit installation 4. After you select an installation location, align the refrigerant pipes, drain pipes, as well as indoor and outdoor wires with their connection points before mounting the unit. 5. Drill 4 holes 10cm (4”) deep at the ceiling hook positions in the internal ceiling. Be sure to hold the drill at a 90°...
Page 113 Indoor unit installation Change the fan motor static pressure corresponding to external duct static pressure. NOTE: 1.Do not put the connecting duct weight on the indoor unit. 2.When connecting duct, use inflammable canvas tie-in to prevent vibrating. 3. Insulation foam must be wrapped outside the duct to avoid condensate. An internal duct underlayer can be added to reduce noise, if the end-user requires.
Page 114 Indoor unit installation 3.4 Compact cassette indoor unit installation 3.4.1 Service space for indoor unit 3.4.2 Bolt pitch 3.4.3 Install the pendant bolt Select the position of installation hooks according to the hook holes positions showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings).
Page 115: Install The Main Body
Indoor unit installation If the ceiling is extremely high, please determine the length of the installation hook depending on the real situation. 3.4.4 Install the main body Make the 4 suspender through the 4 hanger of the main body to suspend it. Adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the body.
Page 116 Indoor unit installation Hang the panel to the hooks on the mainbody. Tighten the screws under the panel hooks till the panel closely stick on the ceiling to avoid condensate water. Hang the air-in grill to the panel, then connect the lead terminator of the swing motor and that of the control box with corresponding terminators on the body respectively.
Page 117: Outdoor Unit Installation (Side Discharge Unit)
Outdoor unit installation (Side Discharge Unit) 4. Outdoor unit installation (Side Discharge Unit) 4.1 Service space for outdoor unit (Wall or obstacle) More than 30cm Air inlet More than 60cm More than 30cm Maintain channel Air inlet More than 60cm Air outlet More than 200cm 4.2 Bolt pitch...
Page 118: Refrigerant Pipe Installation
Refrigerant pipe installation 5. Refrigerant pipe installation 5.1 Maximum pipe length and height drop Considering the allowable pipe length and height drop to decide the installation position. Make sure the distance and height drop between indoor and outdoor unit not exceeded the date in the following table. Model Max.
Page 119 Refrigerant pipe installation Flare dimension A (mm) Pipe diameter Flare shape 90 ° 4 1/4" (6.35) 12.0 12.4 3/8" (9.52) R0.4~0.8 15.4 15.8 1/2" (12.7) 18.6 19.1 5/8" (15.9) 22.9 23.3 3/4" (19)  After flared the pipe, the opening part must be seal by end cover or adhesive tape to avoid duct or exogenous impurity come into the pipe.
Page 120 Refrigerant pipe installation Note: All used branch pipe must be produced by MUNDOCLIMA, otherwise it causes malfunction. The indoor units should be installed equivalently at the both side of the U type branch pipe. Permitted Value Piping Total pipe length (Actual)
Page 121 Refrigerant pipe installation Installation...
Page 122: Drainage Pipe Installation
Drainage pipe installation 6. Drainage pipe installation Install the drainage pipe as shown below and take measures against condensation. Improperly installation could lead to leakage and eventually wet furniture and belongings. 6.1 Installation principle  Ensure at least 1/100 slope of the drainage pipe ...
Page 123 Drainage pipe installation 6.2.3 Individual design of drainage pipe system  The drainage pipe of air conditioner shall be installed separately with other sewage pipe, rainwater pipe and drainage pipe in building.  The drainage pipe of the indoor unit with water pump should be apart from the one without water pump. 6.2.4 Supporter gap of drainage pipe ...
Page 124 Drainage pipe installation Indoor unit More than 50mm Plug More than 25mm Water storage pipe 6.2.7 Lifting pipe setting of indoor unit with water pump  The length of lifting pipe should not exceed the pump head of indoor unit water pump. Pump head of big four way cassette: 750mm Pump head of compact four way cassette: 500mm ...
Page 125: Drainage Test
Drainage pipe installation 6.3 Drainage test 6.3.1 Water leakage test After finishing the construction of drainage pipe system, fill the pipe with water and keep it for 24 hours to check whether there is leakage at joint section. 6.3.2 Water discharge test Natural drainage mode(the indoor unit with outdoor drainage pump) Infuse above 600ml water through water test hole slowly into the water collector, observe whether the water can discharge through the transparent hard pipe at drainage outlet.
Page 126: Vacuum Drying And Leakage Checking
Vacuum Drying and Leakage Checking 7. Vacuum Drying and Leakage Checking 4.1 Purpose of vacuum drying  Eliminating moisture in system to prevent the phenomena of ice-blockage and copper oxidation. Ice-blockage shall cause abnormal operation of system, while copper oxide shall damage compressor. ...
Page 127: Additional Refrigerant Charge
Additional refrigerant charge 8. Additional refrigerant charge  After the vacuum drying process is carried out, the additional refrigerant charge process need to be performed.  The outdoor unit is factory charged with refrigerant. The additional refrigerant charge volume is decided by the diameter and length of the liquid pipe between indoor and outdoor unit.
Page 128: Engineering Of Insulation
Engineering of insulation 9. Engineering of insulation 9.1 Insulation of refrigerant pipe 9.1.1 Operational procedure of refrigerant pipe insulation Cut the suitable pipe → insulation (except joint section) → flare the pipe → piping layout and connection→ vacuum drying → insulate the joint parts 9.1.2 Purpose of refrigerant pipe insulation ...
Page 129: Engineering Of Electrical Wiring
Engineering of electrical wiring 9.2.3 Insulation material selection for drainage pipe  The insulation material should be flame retardant material, the flame retardancy of the material should be selected according to the local law.  Thickness of insulation layer is usually above 10mm. ...
Page 130: Test Operation
Test operation 11. Test operation 11.1 The test operation must be carried out after the entire installation has been completed. 11.2 Please confirm the following points before the test operation.  The indoor unit and outdoor unit are installed properly. ...
Page 131: Electrical Control System
Electrical Control System Part 5 Electrical Control System 1. Electrical Control Function ........130 2. Troubleshooting ............141 3. Controller ..............175 Electrical Control System...
Page 132: Main Protection
Electrical Control Function 1. Electrical Control Function 1.1 Abbreviation T1: Indoor room temperature T2: Middle indoor heat exchanger coil temperature T2B: Indoor heat exchanger exhaust coil temperature T3: Outdoor heat exchanger pipe temperature T4: Outdoor ambient temperature T5: Compressor discharge temperature 1.2 Main Protection 1.2.1 Compressor Restart Delay 1.2.2 Temperature Protection of Compressor Discharge...
Page 133 Electrical Control Function 0： No malfunction 1：P0 Overcurrent 2：Overpressure 3：Overload 4：Over speed 5：Startup malfunction 6：Lack of phase 7：DC voltage too low 8：Communication fault 9：Parameter fault 10：L3 Current limited 11：L5 Voltage limited 12: Target speed cannot be met during the static pressure calculation process. For other models: If the indoor fan speed is lower than 300 RPM for 50 seconds or more, it shuts off and restarts in 30 seconds.
Page 134: Operation Modes And Functions
Electrical Control Function 1.3 Operation Modes and Functions 1.3.1 Fan Mode (1) Outdoor fan and compressor cease operation. (2) Temperature setting function is disabled, and no preset temperature is displayed. (3) Louver operates the same as in cooling mode. (4) Auto fan: When it fan-only mode, operates the same as auto fan in cooling mode with the temperature set at 24℃.
Page 135 Electrical Control Function 24~60K 1.3.2.3 Indoor Fan Running Guidelines In cooling mode, the indoor fan runs continuously and You can select the following speeds: high, medium, low, auto or silent. When the compressor is running, The indoor fan is regulated as illustrated as in the following figure: Setting fan T1-Td ℃(°...
Page 136 Electrical Control Function 1.3.2.4 High Condenser Coil Temperature Protection 12K/18K 24~60K Decrease Decrease Hold Hold Resume Increase slowly Resume 1.3.3 Heating Mode 1.3.3.1 Outdoor Fan Running Guidelines 12K/18K Fan speed is regulated according to T4 and compressor frequency. Frequency linkage area Frequency linkage area: 24~60K: Electrical Control System...
Page 137 Electrical Control Function 1.3.3.2 Indoor Fan Running Guidelines In heating mode, indoor fan speed can be set at high, medium, low, or auto fan, and the anti-cold-wind function is preferential. When the compressor is running, The indoor fan is regulated as illustrated as in the following figure: Setting fan T1-Td℃...
Page 138: Dehumidifier Mode
Electrical Control Function TEstop Decrease TEdown Hold TEnorm Resume Off: Compressor stops. Decrease: Decreases the running frequency. Hold: Maintains the current frequency. Resume: No limitation is applied to frequency. 1.3.4 Auto-mode You can choose this mode with the remote control and adjust to temperature to between 17-30. In auto mode, the machine chooses cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).
Page 139: Auto Restart Function
Electrical Control Function 1.3.6.6 The timer does not change the unit operation mode. If the unit is off now, it does not start up immediately after the “timer off” function is set. When the setting time is reached, the timer LED switches ioff and the unit running mode remains unchanged.
Page 140 Electrical Control Function 1.3.11 Outdoor Unit Point Check Function(Excluding 12K&18K models) A check switch is included on the outdoor PCB. Push SW1 to check the unit's status while running. The digital display shows the following codes each time the SW1 is pushed. Display Remark Normal display...
Page 141 Electrical Control Function digits. For example, if the digital display shows “0.5", the IGBT radiator temperature is 105 ℃. If the digital display shows “1.6", the IGBT radiator temperature is 116 ℃. Indoor unit number The indoor unit can communicate with outdoor unit. General: 1, Twins: 2 Condenser pipe temperature #1 indoor...
Page 142 Electrical Control Function If the capacity demand is 0, the digital display shows “0”. If the indoor unit is not connected, the digital display shows: “――” Appendix Shutdown Causes Code Frequency limit caused by current Frequency limit caused by T2 in cooling Frequency limit caused by T2 in heating Preset temperature reached Frequency limit caused by T4...
Page 143: Troubleshooting
Troubleshooting 2. Troubleshooting 2.1 Display board 2.1.1 Icon explanation on indoor display board (Super slim cassette). 2.1.2 Icon explanation on indoor display board ( Duct) PRE-DEF indicator(cooling and heating type) or fan only indicator(cooling only type) Alarm indicator Timer indicator Infrared signal receiver Operation lamp Display digital tube...
Page 144 Troubleshooting 2.2 Indoor Unit Malfunctions Operation Lamp Malfunction Error Code Timer Lamp (flashes) Indoor EEPROM malfunction Communication malfunction between indoor and outdoor units Indoor fan speed malfunction T1 temperature sensor open or short circuit T2 temperature sensor open or short circuit Refrigerant leakage detection Water level alarm malfunction Communication error between master and slave unit (for twins system)
Page 145 Troubleshooting 2.3 Outdoor Unit Malfunctions For 24K~60K: Display Malfunction or Protection Communication malfunction between indoor and outdoor units Overcurrent protection Ambient temperature sensor (T4) malfunction Outdoor heat-exchanger temperature sensor (T3) malfunction Discharge temperature sensor (T5) malfunction Outdoor EEPROM malfunction Outdoor fan speed malfunction IPM module protection DC voltage too high/too low protection Ultra-low ambient temperature protection...
Page 146 Troubleshooting 2.4 Resolving Typical Malfunctions 2.4.1 For Indoor Units 2.4.1.1 Temperature Sensor Open or Short Circuit Malfunction conditions If the sampling voltage is lower than 0.06V or higher than 4.94V, the LED will display the failure. Possible causes ● Wiring mistakes ●...
Page 147 Troubleshooting 2.4.1.3. Indoor EEPROM Malfunction Malfunction conditions Main PCB chip does not receive feedback from EEPROM chip Possible causes ● Installation mistakes ● Faulty PCB Power off, then restart the unit 2 minutes later. Does a problem remain? Replace the indoor main PCB EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and reprogrammed using a pulsed voltage.
Page 148 Troubleshooting 2.4.1.5. Indoor Fan Speed Malfunction Malfunction conditions When indoor fan speed continues to run at too low a speed (300RPM) for a certain period of time, the unit will stop and the LED will display a failure code. Possible causes ●...
Page 149 Troubleshooting DC motor voltage input and output Color Signal Voltage Vs/Vm 200V~380V Black White 13.5-16.5V Yellow 0~6.5V Blue 13.5-16.5V 2. Indoor or outdoor DC Fan Motor (control chip is in PCB) Release the UVW connector. Measure the resistance of U-V, U-W, and V-W. If the resistances are not equal to each other, the fan motor may be experiencing problems and need to be replaced.
Page 150 Troubleshooting 2.4.1.6. Refrigerant Leakage Detection Define the evaporator coil temperature T2 of the compressor starts Malfunction conditions running as Tcool. If the following occurs 3 times, the display shows "EC" and the unit switches off: In the first 8 minutes after the compressor starts up, if T2 ＜Tcool－2℃ is not maintained for 4 seconds and compressor running frequency is not higher than 50Hz for 3 minutes Potential causes...
Page 151 Troubleshooting 2.4.1.7 Outdoor IGBT sensor is faulty Check the connection between temperature Ensure proper connection sensor and PCB. Is it properly wired? Measure the resistance value of the sensor. Is it Replace the sensor within acceptable parameters? Replace outdoor main PCB 2.4.1.8 Communication malfunction between indoor and outdoor units The same as E1 in outdoor.
Page 152 Troubleshooting 2.4.2 Super-Slim Cassettes with an Up-Down Panel 2.4.2.1 Communication Errors between Indoor Unit and Up-Down Panel F0 Displayed F0 Displayed Communication failure between Communication failure between indoor unit and up-down panel indoor unit and up-down panel Check the wire connection Check the wire connection between up-down panel and between up-down panel and...
Page 153 Troubleshooting 2.4.3 Units with TWINS Function (for the Super-Slim Cassette & Duct) 2.4.3.1 Communication between Master Unit and Indoor Unit Malfunction F3 Displayed F3 Displayed Communication failure between Communication failure between master unit and slave unit master unit and slave unit Check the dial switch settings of Check the dial switch settings of Correct the...
Page 154 Troubleshooting 2.4.4 Outdoor Units 2.4.4.1. Compressor Driven Chip EEPROM Malfunction Malfunction conditions Main PCB chip does not receive feedback from EEPROM chip Possible causes ● Installation mistakes ● Faulty PCB Compressor driven chip Compressor driven chip EEPROM malfunction EEPROM malfunction Power off, then restart the Power off, then restart the unit 2 minutes later.
Page 155 Troubleshooting 2.4.4.2 Compressor Speed Malfunction/ Zero Speed Protection / Synchronous Fault Protection LED1(Green) off/LED2(Red) flash LED1(Green) off/LED2(Red) flash or LED1(Green) flash/LED2(Red) on or LED1(Green) flash/LED2(Red) on Is there at least one LED in Is there at least one LED in the compressor driven chip the compressor driven chip light?
Page 156 Troubleshooting 2.4.4.3 MCE Malfunction MCE malfunction MCE malfunction Power off, then restart the Power off, then restart the unit 2 minutes later. Does a unit 2 minutes later. Does a problem still exist? problem still exist? Replace the outdoor main PCB Replace the outdoor main PCB Electrical Control System...
Page 157 Troubleshooting 2.4.4.4. E1 malfunction For 12K and 18K: Indoor unit does not receive feedback from outdoor unit for 110 Malfunction seconds. This occurs 4 times in a row. conditions Possible causes ● Wiring mistakes ● Faulty indoor or outdoor PCB Power off, then restart the unit 2 minutes later.
Page 158 Troubleshooting For 24-60K: Malfunction Indoor unit does not receive feedback from outdoor unit for 60 conditions seconds OR outdoor unit does not receive feedback from indoor unit for 120 seconds. Possible causes ● Wiring mistakes ● Faulty indoor or outdoor PCB E1 displayed E1 displayed Communication malfunction between indoor...
Page 159 Troubleshooting 2.4.4.5. F0 Malfunction Malfunction conditions If the outdoor current exceeds the current limit value, the LED displays a failure code. Possible causes ● Wiring mistakes Faulty bridge rectifier ● ● System blockages ● Faulty outdoor PCB Electrical Control System...
Page 160 Troubleshooting F0 displayed F0 displayed Current protection of compressor Current protection of compressor Was the protection activated Was the protection activated in standby? in standby? Is the power voltage is Restart the unit when the power Is the power voltage is Restart the unit when the power normal? supply returns to normal...
Page 161 Troubleshooting 2.4.4.6. F1, F2, F3 Malfunction Error E4 displayed E4 displayed Judge 1: Outdoor condenser temp. sensor (T3) is malfunctioning Judge 1: Outdoor condenser temp. sensor (T3) is malfunctioning Is the wiring of the condenser temp. Reconnect the condenser Is the wiring of the condenser temp. Reconnect the condenser sensor (T3) not connected properly? temp.
Page 162 Troubleshooting 2.4.4.7. F4 Malfunction Malfunction conditions Main PCB chip does not receive feedback from EEPROM chip Possible causes ● Installation mistakes ● Faulty PCB F4- Display F4- Display Outdoor EEPROM malfunction Outdoor EEPROM malfunction Power off, then restart the Power off, then restart the unit 2 minutes later.
Page 163 Troubleshooting 2.4.4.9. P0 Malfunction Malfunction conditions When the voltage signal te IPM sends to compressor drive chip is not normal, the LED displays “P0” and the unit turns off. Possible causes Wiring mistakes ● Faulty IPM board ● Faulty outdoor fan assemby ●...
Page 164 Troubleshooting P0 displayed P0 displayed IPM module protection IPM module protection Restart the unit when the power supply Restart the unit when the power supply Is the power voltage normal? Is the power voltage normal? returns to normal returns to normal Is the outdoor terminal voltage Are the power wires Reconnect the power...
Page 165 Troubleshooting 2.4.4.10. P1 malfunction Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Abnormal power supply   Wiring mistake  Faulty bridge rectifier  Faulty IPM board P1 display P1 display Voltage protection Voltage protection...
Page 166 Troubleshooting 2.4.4.11. P4 Malfunction The troubleshooting is same as the “ ” IPM module protection 2.4.4.12. J0 Malfunction Malfunction conditions When evaporator coil temperature is more than 60°C, the unit stops. It starts again only when the evaporator coil temperature is less than 54°C Possible causes ...
Page 167 Troubleshooting 2.4.4.13. J1 Malfunction When the outdoor pipe temperature is more than 65°C, the unit stops. It Malfunction conditions starts again only when the outdoor pipe temperature is less than 52°C. Possible causes Faulty condenser temperature sensor ● Dirty heat exchanger ●...
Page 168 Troubleshooting 2.4.4.14. J2 Malfunction Malfunction conditions When the compressor discharge temperature (T5) is more than 115℃ for 10 seconds, the compressor will stop and not restart until T5 is less than 90℃. Possible causes Refrigerant leakage ● Wiring mistake ● Faulty discharge temperature sensor ●...
Page 169 Troubleshooting 2.4.4.15. J3 Malfunction Malfunction decision When the voltage signal that IPM send to compressor drive conditions chip is abnormal, the display LED will show “J3” and AC will turn off. Supposed causes Wiring mistake ● Faulty IPM board ● Faulty outdoor fan ass’y ●...
Page 170 Troubleshooting 2.4.4.16. J4 Malfunction J4 displayed J4 displayed Communication error between outdoor main Communication error between outdoor main chip and compressor driven chip chip and compressor driven chip Is there at least one LED in the Is there at least one LED in the compressor driven chip light? compressor driven chip light? Check the signal wire between the...
Page 171 Troubleshooting 2.4.4.17. J5 Malfunction Malfunction conditions If the sampling voltage is not 5V, the LED displays a failure code. Possible causes ● Wiring mistakes Faulty overload protector ● ● System blockages ● Faulty outdoor PCB J5 displayed J5 displayed High pressure protection High pressure protection Are the high pressure Are the high pressure...
Page 172 Troubleshooting 2.4.4.18. P6/J6 Malfunction Malfunction conditions If the sampling voltage is not 5V, the LED displays a failure code. Possible causes ● Wiring mistake Faulty over load protector ● ● System blockages ● Faulty outdoor PCB J6 displayed J6 displayed Low pressure protection Low pressure protection Reconnect the low pressure...
Page 173 Troubleshooting 2.4.4.19. J8 malfunction Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Abnormal power supply   Wiring mistake  Faulty bridge rectifier  Faulty IPM board J8 display J8 display AC power input voltage AC power input voltage...
Page 174 Troubleshooting Appendix 1 Temperature Sensor Resistance Value Table (℃--K) ℃ K Ohm ℃ K Ohm ℃ K Ohm ℃ K Ohm 12.6431 2.35774 0.62973 115.266 108.146 12.0561 2.27249 0.61148 101.517 11.5000 2.19073 0.59386 96.3423 10.9731 2.11241 0.57683 89.5865 10.4736 2.03732 0.56038 84.2190 10.000...
Page 175 Troubleshooting Appendix 2 Unit: ℃---K Discharge temperature sensor table 542.7 68.66 13.59 3.702 511.9 65.62 13.11 3.595 62.73 12.65 3.492 455.9 59.98 12.21 3.392 430.5 57.37 11.79 3.296 406.7 54.89 11.38 3.203 384.3 52.53 10.99 3.113 363.3 50.28 10.61 3.025 343.6 48.14 10.25...
Page 176 Troubleshooting Appendix 3 Normal voltage of P and N 208-240V(1-phase,3-phase) 380-415V(3-phase) In standby 310VDC around 530VDC around In operation With passive PFC With partial active With fully active module PFC module PFC module >200VDC >310VDC >370VDC >450VDC Electrical Control System...
Page 177: Wireless Remote Controller
Controller 3. Controller 3.1Wireless Remote Controller 3.1.1RG51Q1/BGE General Function for wireless remote controller: Model RG51Q1/BGE Rated voltage 3.0V(2pieces of LR03 7＃ batteries) Min voltage for sending signal of CPU 2.4V Effective receiving distance 8m~11m Operation condition -5~60℃ Electrical Control System...
Page 178 Controller Buttons and functions 1. Adjust : Decrease the set temperature Keeping pressing will decrease the temp with 1℃ per 0.5s. 2. Adjust : Increase the set temperature Keeping pressing will increase the temp with 1℃ per 0.5s. 3. MODE: Once pressing, running mode will be selected in the following sequence: AUTO COOL HEAT...
Page 179: Remote Controller Specifications
Controller 3.1.2 RG51C/E Remote Controller Specifications Model RG51C/E 3.0V(2pieces of LR03 7＃ batteries) Rated Voltage Lowest Voltage of CPU Emitting Signal 2.0V Reaching Distance 8m (when using 3.0 voltage, it can get 11m) Environment Temperature Range -5℃～60℃ Introduction of Function Buttons on the Remote Controller SE T TEMP ERATURE( C ) FA N AUT O...
Page 180 Controller controls into faceplate setting state and the LCD shows F2.Press the TEMPUP( ) to control the faceplate up and press the TEMP DOWN( ) to control the faceplate down. Press any button to exit the faceplate setting state, then the LCD back to the normal display. 7.
Page 181 Controller 3.1.3 R51M/(C)E Remote Controller Specifications Model R51M/(C)E Rated Voltage 3.0V Reaching Distance Environment Temperature Range -5℃～60℃ Introduction of Function Buttons on the Remote Controller 1. Adjust : Decrease the set temperature Keeping pressing will decrease the temp with 1℃ per 0.5s. 2.
Page 182 Controller AUTO HIGH 9. ON/OFF: For turning on or turning off the air conditioner 10. TIME ON: For time ON setting. Once pressing this button, the time will increase by 0.5 hour. When the set time exceeds 10 hours, pressing the button will increase the time by 1 hour. Adjusting the figure to 0.00 will cancel time ON setting.
Page 183: Wired Remote Controller
Controller 3.2 Wired Remote Controller 3.2.1 KJR-12B Name and functions of buttons on the wire controller Mode button: When press this button, the operation mode change as the following sequence: AUTO COOL HEAT Remark: For the cooling only model, the heating mode is skipped. Timer on button: Press this button, timer on function is active.
Page 184 Controller Adjust button: Set indoor temperature up. If press and hold on, it will increase at 1degree per 0.5 second. Adjust button: Set indoor temperature down. if press and hold on, it will decrease at 1degree per 0.5 Second. 10. Swing button: First press, start swing function; second press, stop swing. (Match to some model with swing function).
Page 185: Installation Notice
Controller The wired controller will reset to factory setting with auto mode, auto fan and 24℃ setting temperature when the air conditioner restarts after power failure. And this may cause inconsistent displays on the wired controller and on the air conditioner. You need to readjust the running status through the wired controller.
Page 186 Controller 3.2.2 KJR-120C1/BTF-E Name and functions of buttons on the wire controller Electrical Control System...
Page 187 Controller 1. Power button: When in off state, short press this button, the operation lamp lits brightly. When in on state, short press this button, the operation lamp does not lit. If timer on or timer off has been set, it will not cancel this setting.
Page 188 Controller Name and function of LCD on the wire controller Installation 1. Connect the female joint of wires group from the mainboard with the male joint of connective wires group. 2. Please connect the other side of connective wires group with the male joint of wires group leads from wire controller Electrical Control System...
Page 189 Controller 3. Insert a slot screwdriver into the slots in the lower part of the wire controller (2 places), and remove the upper part of the wire controller. 4.Fasten the back plate of the wire controller 4.4 For exposed mounting, fasten the back plate on the wall with the 3 screws (M4×20) and plugs.
Page 190: Battery Installation
Controller 5. Battery installation 4.6 Put the battery into the installationsite and make sure the positive side of the battery is in accordance with the positive side of installationsite. 4.7 Please set the time corrected on the first time operation. Batteries in the wire controller can timing under power failure which ensure the time keep right.
Page 191 Controller 7. Reattach the upper part of the wire controller After adjusting the upper case and then buckle the upper case; avoid clamping the wiring during installation 3.2.3 Two-wired non-polarity wired controller(KJR-120G)(Optional) 1.Connection For Cassette: The wired controller connects to main control board directly. For Duct, Ceiling&...
Page 192 Controller 2.Address setting One non-polarity controller can control up to 16 indoor units. When the non-polarity controller is connected to several units, every air-conditioner in network has only one network address to distinguish each other. Address code of air-conditioner in LAN is set by code switch ENC1(Duct and Ceiling& Floor) or ADSS(Cassette) of the indoor unit, and the set range is 0-15.
Page 193 ASK FOR MORE INFORMATION Phone: (+34) 93 446 27 81 eMail: info@mundoclima.com TECHNICAL ASSISTANCE Phone: (+34) 93 652 53 57 www.mundoclima.com...

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